MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.8
2025-11-30 15:59:29 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-01 09:06:09

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Earthquake info - Manual location
Event - ID :251130155847
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2025-11-30 15:59:29.411 (UTC)
Location : Latitude: 45.469 N, Longitude: 6.690 E
Area :Alpi Graie
Depth (km) :5.98
Distances (km) : 34.2 --- La Thuile
34.2 --- Valgrisenche
35.2 --- Rhemes-Notre-Dame
37.2 --- Moncenisio
40.1 --- Pre -Saint-Didier
40.1 --- Novalesa
41.7 --- Rhemes-Saint-Georges
41.9 --- Morgex
42.2 --- Courmayeur
42.6 --- Venaus
42.6 --- Ceresole Reale
42.7 --- Valsavarenche
42.8 --- La Salle
43.4 --- Bardonecchia
44.1 --- Avise
44.5 --- Giaglione
44.8 --- Mompantero
45.1 --- Balme
45.2 --- Chiomonte
45.3 --- Exilles

Quality location estimate: Erh: 1 km, Erz: 2.1 km, Nf: 22, Gap: 167 °, Rms: 0.24


Manual location results
Station Net P arrival time P pick
err
P pick
weight
P res Nll
weight
S arrival time S pick
err
S pick
weight
S res Nll
weight
Dist.
RSLFR2025-11-30 15:59:34.5720.0200-0.021.882025-11-30 15:59:37.8460.0400-0.171.3325.6
OGMOFR2025-11-30 15:59:35.1000.02010.041.722025-11-30 15:59:38.2100.0742-0.720.5429.7
LSDGU2025-11-30 15:59:36.5100.01900.290.562025-11-30 15:59:40.7300.0952-0.051.5935.6
MRGEIV2025-11-30 15:59:38.0560.02000.041.672025-11-30 15:59:43.6100.1394-0.151.3444.8
BLANCGU2025-11-30 15:59:38.7420.02000.340.542025-11-30 15:59:44.9760.04000.520.2446.7
RSPGU2025-11-30 15:59:40.0000.0291-0.021.722025-11-30 15:59:46.8660.2637-0.410.9357.8
RRLGU2025-11-30 15:59:40.5500.0311-0.221.152025-11-30 15:59:47.9410.1002-0.710.5662.0
CIROGU2025-11-30 15:59:42.0550.0200-0.650.572025-11-30 15:59:50.3070.0400-1.190.1570.4
BHBGU2025-11-30 15:59:44.3200.04220.061.472025-11-30 15:59:54.0290.0400-0.460.8383.8
DIXCH2025-11-30 15:59:45.2870.0200-0.071.542025-11-30 15:59:56.2830.0400-0.091.2788.0
SENINCH2025-11-30 15:59:51.0310.02001.780.002025-11-30 16:00:02.0370.0400-0.950.40110.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
LSD GUHH0.643.89e-235.692
MRGE IVHH0.461.39e-244.841
BLANCGUHH0.803.30e-246.724
RSP GUHH0.822.41e-257.8128
RRL GUHH0.771.16e-262.0173
CIRO GUHH0.493.66e-370.478
BHB GUHH0.646.03e-383.8147
DIX CHHH1.011.39e-288.039
SENINCHHH1.181.20e-2110.225


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)
PGV
(m/s)
IH 0*
(m)
IH 1*
(m)
IH 2*
(m)
Sa(T=0.10)
(g)
Sa(T=0.30)
(g)
Sa(T=1.00)
(g)
Sa(T=3.00)
(g)
Dist.
(km)
Azim.
(°)
LSD GUHHZ6.6584e-66.4311e-72.2909e-76.2214e-83.0462e-88.9486e-68.2647e-76.0328e-81.2753e-835.692
LSD GUHHN8.5482e-69.4216e-72.9481e-79.4424e-85.2714e-81.4279e-59.9042e-79.8078e-82.0468e-835.692
LSD GUHHE6.7277e-66.6260e-71.9544e-76.0120e-82.8214e-87.0019e-68.3046e-75.2185e-81.1455e-835.692
MRGE IVHHZ1.8950e-62.1719e-78.4077e-82.4401e-81.0651e-81.7342e-64.3845e-71.7078e-84.3280e-944.841
MRGE IVHHN3.8470e-63.6663e-71.0393e-74.2859e-82.3153e-86.5131e-63.8308e-73.2326e-86.7073e-944.841
MRGE IVHHE2.9841e-62.7569e-77.8877e-83.0746e-81.6003e-83.5979e-66.4254e-72.4898e-85.0052e-944.841
BLANCGUHHZ1.2342e-62.4195e-71.3211e-76.2694e-82.5522e-83.3000e-66.3202e-73.6177e-85.8513e-946.724
BLANCGUHHN2.2186e-63.1159e-71.7787e-77.1468e-83.0512e-83.0728e-69.7856e-74.7459e-88.9053e-946.724
BLANCGUHHE1.6773e-64.1088e-72.4826e-71.1251e-75.7861e-85.4308e-68.4258e-77.6782e-81.0476e-846.724
RSP GUHHZ2.0375e-62.2109e-71.1236e-73.4422e-81.7923e-83.8293e-64.2258e-73.1005e-85.0980e-957.8128
RSP GUHHN2.2021e-63.3579e-72.2752e-76.9900e-83.2242e-86.2421e-67.3729e-75.0661e-88.0912e-957.8128
RSP GUHHE3.0577e-64.4214e-71.9389e-76.0159e-83.0669e-88.3395e-68.8727e-74.3998e-89.3943e-957.8128
RRL GUHHZ7.9333e-71.0448e-77.4169e-83.3688e-81.3455e-81.5700e-64.0966e-71.9995e-83.0155e-962.0173
RRL GUHHN8.8759e-71.1362e-79.7212e-82.9934e-81.4430e-82.3738e-64.9985e-71.7426e-82.5718e-962.0173
RRL GUHHE5.8627e-71.4012e-79.4692e-84.1557e-81.9486e-81.2743e-65.5315e-72.6587e-83.6567e-962.0173
CIRO GUHHZ4.1709e-74.1329e-82.9263e-81.4001e-86.1716e-98.0318e-71.2179e-78.2170e-91.0735e-970.478
CIRO GUHHN5.2230e-76.3828e-82.8987e-82.1014e-88.0018e-99.5167e-71.2186e-71.1844e-81.1987e-970.478
CIRO GUHHE4.6409e-75.7217e-82.0443e-89.4716e-96.0371e-99.2594e-78.1254e-81.1359e-81.2254e-970.478
BHB GUHHZ1.1950e-61.5705e-74.6117e-81.7841e-81.8014e-81.8489e-61.4033e-74.3121e-83.4347e-983.8147
BHB GUHHN8.5291e-71.1633e-75.6113e-81.8230e-81.4509e-83.3974e-62.1634e-73.2609e-83.0127e-983.8147
BHB GUHHE6.7184e-78.0936e-83.8648e-81.5878e-81.4194e-81.2664e-61.6191e-73.2449e-82.5949e-983.8147
DIX CHHHZ5.8968e-71.4836e-71.0671e-74.1203e-81.6043e-81.3674e-67.1773e-72.4343e-83.5114e-988.039
DIX CHHHN7.6464e-71.4542e-71.2338e-75.8720e-82.3063e-81.8465e-65.3455e-74.1616e-84.8273e-988.039
DIX CHHHE7.7494e-71.1347e-71.0094e-73.8808e-81.8863e-81.6935e-64.8820e-72.6922e-83.5307e-988.039
SENINCHHHZ2.5694e-79.1081e-86.1303e-84.4183e-85.8624e-89.6553e-73.4900e-79.1712e-81.6941e-8110.225
SENINCHHHN2.1414e-78.2138e-85.3884e-85.1504e-85.7288e-85.1278e-72.3454e-79.7879e-81.9282e-8110.225
SENINCHHHE2.0902e-78.8568e-86.1804e-83.2907e-82.1933e-86.1334e-74.3971e-72.9497e-83.2240e-9110.225
*IH (Housner Intensity) calculated on the velocity spectrum (SV) between 0.1 and 0.5 s (IH0), 0.1 and 1.0 s (IH1), 0.1 and 1.5 s (IH2)

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